Scientists in China have built a prototype high-speed maglev train that is theoretically capable of reaching speeds of up to 1,800 mph (2,900 km/h).
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Whale oil was used in automobile transmissions as late as 1973.
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Students at MIT developed a wristband that can regulate your “thermal comfort”, which could possibly eliminate the need for central heating and cooling.
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An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
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It would take twenty new mid-size cars to generate the same amount of pollution that a mid-size 1960's car did.
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